Operating and locking apparatus.



D. H. MGGLELLAND.

OPERATING AND LOCKING APPARATUS.

APPLICATION FILED SEPT. 27, 1911.

1,050,035, vPatented Jan. 7, 1913.

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DAVID H. MCCLELLAND, OF CHICAGO, ILLINOIS.

OPERATING AND LOCKING APPARATUS.

To all lwhom t may concern Be it known that I, DAVID H. MCCLEL- LAND, acitizen of the United Sta-tes, residing at Chicago, in the county ofCook and State of Illinois, have invented new and useful Improvements inOperating and Locking Apparatus, of which the following is aspecification.

My invention re-lates more particularly to that class of apparatus whichwill alternately operate and hold any object to which it may be properlyapplied.

Further objects in this invention are to provide apparatus of such acharacter with suoli combination of parts and members that lock whenrequired, release and operate when required, and of such a type that itmay be applied to railroad track switches, and particularly that classof switches used in tracks on which street cars operate, and forconvenience may be called, railroad switch.

Further objects in this invention are to provide apparatus of such acharacter that it may be operated from the car without stopping the car.

With the above and other objects in view, the invention consists of thenovel provision, construction, association and relative arrangement ofparts and members as hereinafter described, and shown in theaccompanying drawing.

In the drawing:*-Figure 1 is a top plan view of my improved switch. Fig.2 is a view of portion of car, also view of a devicek which may be usedto operate switch, also a sectional view taken on the line m of Fig. 1.Fig. 3 is a top plan view of my improved switch with portions brokenaway to eX- pose movable mechanism. Fig. A is a sectionable view takenon line y g/ of Fig. 1. Fig. 5 is a detail view of crank 2, and plate 1,showing that by reason of being securely fastened together, they becomeone member.

Similar letters refer to similar parts and members throughout theseveral views.

In the drawings 1 is a plate resting upon and pivotally secured to ametal covering 3.

2 is a crank securely fastened to plate 1, and its free end so fashionedas to travel in slot 4, in rod 5. One end of rod 5 is pivotally securedto rod 6, the other end of rod 5 is pivotally secured to the free end ofthe pivoted switch rail 7. Rod 6 is pivot-ally secured to casting 8.Rods 5 and 6 have Specification of Letters Patent.

Application filed September 27, 1911.

Patented Jan. 7, 1913.

seria1 No. 651,590.

lugs A, which are adapted to press together, as hereinafter described.Plate 9 is securely fastened to casting 8, and is adapted to support rod6. Lever 10 is pivotally secured to the Hoor of the car within easyreach of the motorman. A portion of said lever extends through and belowthe floor of the car where link 11 connects with bell crank 12. Bellcrank 12 is pivotally secured to rod 13. A coil spring 1A holds rod 13in its proper position when not in use. Rod 13 should be made of steelof the proper temper, and of a required size, which would permit it tospring laterally suflicient to pass plate 1, at a point where plate 1 ispivotally secured to cover, and also to permit it to spring backward,and clear plate 1 in case the switch rail 7 should be clogged in anymanner, to prevent its operation.

The operation of my improved switch is as follows: When the motor-mandesires to shift the switch rail 7, he pulls the free end of lever 10,which causes rod 13 to descend by reason of its connection with bellcrank 12 and link 11. Rod 13 is placed on the car in such relativeposition that when rod 13 descends, it will alight upon cover 3, at apoint indicated by dotted dash line 15. As the car proceeds, rod 13 willtravel as indicated by arrow, and press against plate 1, whereupon rod13 will deviate from its path of travel sufficient to pass that portionof plate 1, where plate 1 is pivotally secured to cover 3. Rod 13 nowbears against plate 1,

`both laterally and forward, causing plate 1 to swing upon its bearingfrom the position shown in Fig. 1, and stops at a position indicated bydotted dash line. As previously stated, crank 2 is securely fastened toplate 1, therefore the free end of crank 2 has traveled with plate 1from a position indicated by dotted lines in Fig. 1 to a position asclearly shown in Fig. 3. The free end of crank 2 is so fashioned that itprotrudes through rod 5 in slot 4, as seen in Fig. 4t. Therefore thedescribed movement of crank 2 has carried rods 5 and 6 from a positionas shown by dotted lines in Fig. 1, to a position shown by dotted dashlines, and more clearly seen in Fig. 3. This action of rods 5 and 6causes switch rail 7 to move from position as shown in Fig. 1, to aposition as shown by dotted dash line, and clearly shown in Fig. 3.Particular attention is now called to crank 2, as shown in Fig. 3. Ithas in the described movement approached and passed a position of rightangles with rod 5, as shown by dotted dash line D D. Therefore, anypressure brought to bear upon switch rail 7 positively cannot move it.It will be now observed that the slender portion of plate l has passedto the opposite side of line l5 from where it previously stood.Therefore, if rod 13 were again used as previously described, thereverse movement would take place in all the movable members, and in sodoing, pivot bearings B B would approach and pass an imaginary straightline to a position shown at C C C. Lugs A now press together, preventingrods 5 and 6 from going farther. Thus, rods 5 and G again securely holdswitch rail 7, and any pressure brought to bear upon switch rail 7positively cannot move it. Thus it is clearly shown that this invention,by reason oil its peculiar construction, combination and association ofparts and members will lock and securely hold switch rail 7 in each ofits two extreme positions, and will also lock and securely hold anyother object to which it may be properly applied, and release and movesame when so desired.

I do not desire to be understood as limit- 'ing myself to the relativesize and construction of parts and members, but reserve the right tovary the same in adapting the improvement to various conditions of use,without departing from the spirit of this invention, and the terms ofthe following claims.

And now, having fully described my invention, what I claim as new anddesire to secure by Letters Patent, is-

l. In a switch having a casting to which is pivotally secured a switchrail which has its free end pivotally secured to a rod having its treeend pivotally united with a second rod, which is pivotally secured tothe casting; a crank having a pin which travels in a slot in thefirst-mentioned rod, which may cause the rods to stand in alinement whenoperating means engages a sheet metal member secured to the crank and inso doingkwill cause the switch rail to move to one of its extremepositions and lock and hold it there substantially as shown anddescribed.

2. In the combination of a switch, of a member composed of a piece ofsheet metal and an arm, of a casting containing a recess, of a cover forsame containing a bearing for the arm, of a rod containing a slot inwhich the free end of said arm travels, of a joint intermediate from theextreme ends of the rod, one end of the rod being secured to the castingand the other end pivotally secured to the free end of a pivoted switchrail, said switch rail to be thrown when operating means is lowered fromthe car, and remain automatically locked when thrown, substantially asshown and described.

3. In the combination of a switch, of a casting having a cut-awayportion, of a switch rail movably mounted upon the casting, of a linkpivotally mounted to the free end of said switch rail, of a pivotbearing in the cut-away portion of the casting adapted to movably securethe end of said link, of a plate spanning the cut-away portion in thecasting adapt-ed to support the hinged portion of said link, of an armmovably mounted to the cover of the casting, a pin on the free end ofsaid arm which travels in a slot in the said link, of a piece of sheetmetal rigidly secured to said arm adapted to engage operating means on acar, substantially as shown and described.

DAVID I-I. MCCIJELLAND.

Witnesses:

L. J. BUGLER, I. DE MALEHIN.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

